The word officially entered the zeitgeist in 2014, but I don't see it as being wrong to say it wasn't full swing until 2020.
2015-2016 was when the word was morphed rather quickly from a black culture thing "Stay woke" (4chan used to use it in this fashion as well in memes) After 2016 it officially became synonymous with DEI and the "Woke agenda" and you couldn't use the term the same way as it was used in 2014-2016 any longer because people would misunderstand what "Stay woke" was referring to, so it's usage as a "positive" tongue-in-cheek thing about being aware of government corruption et al was completely dropped from vocabulary years before 2020.
Many people that study the history of memes believe some type of psyop was involved to take the grass roots meaning of 2014-2015 "stay woke" and subvert it.